OPTICAL MEASURING DEVICE AND OPTICAL MEASURING METHOD

• Main Authors: TAKESHITA TERUO, MATSUMURA TOMOKAZU, IWATA NAOKI, KONDO FUSANORI
• Format: Patent
• Language: English; Japanese
• Published: 30.07.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide an optical measuring device and an optical measuring method capable of removing a noise component resulting from radiation light itself.SOLUTION: An optical measuring device 1 comprises: a light detection element 21 that detects detection light containing fluorescent light that is generated from an immunochromatographic test strip 100 irradiated with excitation light and scattered light that is light due to the excitation light and has a phase equal to that of the excitation light; and a cancel circuit 60 that processes a detection signal according to the detection light. The cancel circuit 60 removes a signal component corresponding to the scattered light from the detection signal based on the phase difference between the fluorescent light and the scattered light.SELECTED DRAWING: Figure 1 【課題】照射光自体に起因するノイズ成分を除去可能な光学測定装置及び光学測定方法を提供すること。【解決手段】光学測定装置１は、励起光が照射された免疫クロマト試験片１００から生じる蛍光、及び、励起光に起因する光であって励起光と等しい位相を持つ散乱光を含む検出光を検出する光検出素子２１と、検出光に応じた検出信号を処理するキャンセル回路６０と、を備え、キャンセル回路６０は、蛍光と散乱光における位相の違いに基づき、検出信号から散乱光に応じた信号成分を除去する。【選択図】図１